Eirdu, Carrier of Dawn
Mikaeus, the Unhallowed
Altar of Dementia

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Eirdu as Isilu, Carrier of Twilight on the battlefield).
You control another nontoken non-Human creature with base toughness 2 or greater.

   Steps

How does this combo work?
1
Activate Altar of Dementia by sacrificing another nontoken non-Human creature
2
When the creature dies, its undying ability triggers, returning the creature from your graveyard to the battlefield with a +1/+1 counter on it.
3
Activate Altar of Dementia by sacrificing the creature with a +1/+1 counter on it.
4
When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5
Resolve the Altar of Dementia abilities from step 1 and 3.
6
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite sacrifice triggers
Infinite death triggers
Infinite mill
Infinite self-mill
Eirdu, Carrier of Dawn
23%inclusion232 decks988 decks
Top Commanders
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0.1%inclusion1 decks1.58K decks
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0.0%inclusion1 decks2.46K decks
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0.0%inclusion1 decks3.86K decks
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0.1%inclusion1 decks732 decks
New Cards
Bitterbloom Bearer
30%inclusion77 decks260 decks
29%synergy
Emptiness
25%inclusion65 decks260 decks
25%synergy
Rhys, the Evermore
16%inclusion8 decks51 decks
16%synergy
The Duke, Rebel Sentry
12%inclusion21 decks174 decks
12%synergy
Redirect Lightning
10%inclusion1 decks10 decks
4%synergy
High Synergy Cards
Murderous Redcap
90%inclusion9 decks10 decks
88%synergy
Ashnod's Altar
87%inclusion227 decks260 decks
81%synergy
Phyrexian Altar
82%inclusion214 decks260 decks
79%synergy
Goblin Bombardment
80%inclusion8 decks10 decks
74%synergy
Viscera Seer
82%inclusion212 decks260 decks
73%synergy
Kitchen Finks
70%inclusion7 decks10 decks
70%synergy
Carrion Feeder
72%inclusion186 decks260 decks
67%synergy
Elas il-Kor, Sadistic Pilgrim
76%inclusion197 decks260 decks
66%synergy
Zulaport Cutthroat
74%inclusion192 decks260 decks
65%synergy
Cruel Celebrant
71%inclusion185 decks260 decks
64%synergy
Top Cards
Swords to Plowshares
74%inclusion192 decks260 decks
12%synergy
Blood Artist
72%inclusion187 decks260 decks
60%synergy
Pitiless Plunderer
72%inclusion186 decks260 decks
63%synergy
Warren Soultrader
65%inclusion168 decks260 decks
59%synergy
Geralf's Messenger
62%inclusion160 decks260 decks
61%synergy
Luminous Broodmoth
62%inclusion160 decks260 decks
59%synergy
Skullclamp
61%inclusion159 decks260 decks
50%synergy
Cathars' Crusade
61%inclusion158 decks260 decks
56%synergy
Dark Ritual
60%inclusion157 decks260 decks
36%synergy
Woodfall Primus
60%inclusion6 decks10 decks
59%synergy
Game Changers
Demonic Tutor
47%inclusion123 decks260 decks
28%synergy
Smothering Tithe
32%inclusion83 decks260 decks
10%synergy
Gamble
30%inclusion3 decks10 decks
21%synergy
Vampiric Tutor
30%inclusion77 decks260 decks
14%synergy
Enlightened Tutor
26%inclusion68 decks260 decks
11%synergy
Teferi's Protection
24%inclusion63 decks260 decks
7%synergy
Ancient Tomb
19%inclusion50 decks260 decks
10%synergy
The One Ring
16%inclusion42 decks260 decks
8%synergy
Imperial Seal
13%inclusion34 decks260 decks
8%synergy
Necropotence
12%inclusion31 decks260 decks
7%synergy
Creatures
Glen Elendra Archmage
75%inclusion3 decks4 decks
73%synergy
Grim Haruspex
58%inclusion151 decks260 decks
55%synergy
Umbral Collar Zealot
55%inclusion143 decks260 decks
52%synergy
Marionette Apprentice
53%inclusion139 decks260 decks
49%synergy
Solemn Simulacrum
51%inclusion133 decks260 decks
38%synergy
Melira, Sylvok Outcast
50%inclusion5 decks10 decks
50%synergy
Yawgmoth, Thran Physician
50%inclusion129 decks260 decks
46%synergy
Corpse Knight
48%inclusion125 decks260 decks
43%synergy
Sephiroth, Fabled SOLDIER
47%inclusion123 decks260 decks
45%synergy
Witch Enchanter
43%inclusion113 decks260 decks
36%synergy
Scholar of New Horizons
43%inclusion112 decks260 decks
42%synergy
Esper Sentinel
43%inclusion112 decks260 decks
24%synergy
Gray Merchant of Asphodel
42%inclusion110 decks260 decks
34%synergy
Vizier of Remedies
42%inclusion108 decks260 decks
41%synergy
Safehold Elite
40%inclusion4 decks10 decks
40%synergy
Scurry Oak
40%inclusion4 decks10 decks
38%synergy
Butcher Ghoul
35%inclusion92 decks260 decks
35%synergy
Woe Strider
34%inclusion89 decks260 decks
32%synergy
Morbid Opportunist
34%inclusion89 decks260 decks
27%synergy
Lotho, Corrupt Shirriff
33%inclusion87 decks260 decks
20%synergy
Midnight Reaper
33%inclusion86 decks260 decks
30%synergy
Bartolomé del Presidio
31%inclusion81 decks260 decks
27%synergy
Heartmender
30%inclusion3 decks10 decks
30%synergy
Furystoke Giant
30%inclusion3 decks10 decks
30%synergy
Flayer of the Hatebound
30%inclusion3 decks10 decks
29%synergy
Herd Baloth
30%inclusion3 decks10 decks
29%synergy
Ivy Lane Denizen
30%inclusion3 decks10 decks
29%synergy
Basking Broodscale
30%inclusion3 decks10 decks
28%synergy
Good-Fortune Unicorn
30%inclusion3 decks10 decks
28%synergy
Agate Instigator
30%inclusion3 decks10 decks
27%synergy
Evolution Witness
30%inclusion3 decks10 decks
27%synergy
Wight of the Reliquary
30%inclusion3 decks10 decks
24%synergy
Anger
30%inclusion3 decks10 decks
24%synergy
Sakura-Tribe Elder
30%inclusion3 decks10 decks
13%synergy
Pawn of Ulamog
29%inclusion75 decks260 decks
27%synergy
Elenda, the Dusk Rose
28%inclusion74 decks260 decks
23%synergy
Teysa Karlov
26%inclusion67 decks260 decks
21%synergy
Sun Titan
26%inclusion67 decks260 decks
17%synergy
Charismatic Conqueror
24%inclusion62 decks260 decks
21%synergy
Junji, the Midnight Sky
23%inclusion59 decks260 decks
20%synergy
Grand Abolisher
22%inclusion57 decks260 decks
13%synergy
Zack Fair
20%inclusion51 decks260 decks
18%synergy
Loran of the Third Path
20%inclusion51 decks260 decks
13%synergy
Braids, Arisen Nightmare
19%inclusion50 decks260 decks
12%synergy
Syr Konrad, the Grim
19%inclusion49 decks260 decks
10%synergy
Welcoming Vampire
18%inclusion48 decks260 decks
12%synergy
Voice of Victory
18%inclusion47 decks260 decks
12%synergy
Solitude
17%inclusion44 decks260 decks
15%synergy
Accursed Marauder
17%inclusion44 decks260 decks
11%synergy
Boromir, Warden of the Tower
17%inclusion43 decks260 decks
12%synergy
Instants
Path to Exile
57%inclusion148 decks260 decks
10%synergy
Anguished Unmaking
52%inclusion136 decks260 decks
28%synergy
Deadly Dispute
48%inclusion124 decks260 decks
35%synergy
Deflecting Swat
40%inclusion4 decks10 decks
23%synergy
Generous Gift
38%inclusion100 decks260 decks
16%synergy
Village Rites
37%inclusion96 decks260 decks
28%synergy
Heroic Intervention
30%inclusion3 decks10 decks
0%synergy
Fell the Profane
29%inclusion75 decks260 decks
20%synergy
Flare of Fortitude
27%inclusion71 decks260 decks
23%synergy
Deadly Rollick
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13%synergy
Inkshield
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19%synergy
Malakir Rebirth
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18%synergy
Culling the Weak
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20%synergy
Despark
21%inclusion55 decks260 decks
7%synergy
Silence
20%inclusion51 decks260 decks
13%synergy
Corrupted Conviction
18%inclusion47 decks260 decks
13%synergy
Plumb the Forbidden
16%inclusion41 decks260 decks
13%synergy
Flawless Maneuver
13%inclusion33 decks260 decks
2%synergy
Saw in Half
12%inclusion30 decks260 decks
7%synergy
Entomb
11%inclusion29 decks260 decks
4%synergy
Stroke of Midnight
11%inclusion29 decks260 decks
1%synergy
Fracture
10%inclusion27 decks260 decks
5%synergy
Flare of Malice
10%inclusion25 decks260 decks
7%synergy
Clever Concealment
10%inclusion25 decks260 decks
5%synergy
Cabal Ritual
8.8%inclusion23 decks260 decks
4%synergy
Reprieve
8.5%inclusion22 decks260 decks
4%synergy
Imp's Mischief
7.3%inclusion19 decks260 decks
4%synergy
Dawn's Truce
7.3%inclusion19 decks260 decks
0%synergy
Cauldron Haze
6.2%inclusion16 decks260 decks
6%synergy
Sorceries
Three Visits
60%inclusion6 decks10 decks
36%synergy
Nature's Lore
50%inclusion5 decks10 decks
18%synergy
Farseek
50%inclusion5 decks10 decks
14%synergy
Reanimate
47%inclusion123 decks260 decks
28%synergy
Diabolic Intent
47%inclusion121 decks260 decks
39%synergy
Damn
43%inclusion112 decks260 decks
28%synergy
Victimize
40%inclusion105 decks260 decks
28%synergy
Cultivate
40%inclusion4 decks10 decks
-3%synergy
Toxic Deluge
37%inclusion96 decks260 decks
19%synergy
Kodama's Reach
30%inclusion3 decks10 decks
2%synergy
Night's Whisper
17%inclusion45 decks260 decks
8%synergy
Agadeem's Awakening
15%inclusion40 decks260 decks
12%synergy
Blasphemous Edict
15%inclusion39 decks260 decks
9%synergy
Austere Command
12%inclusion32 decks260 decks
0%synergy
Grim Tutor
12%inclusion30 decks260 decks
7%synergy
Sign in Blood
12%inclusion30 decks260 decks
3%synergy
Living Death
10%inclusion25 decks260 decks
4%synergy
Sevinne's Reclamation
9.2%inclusion24 decks260 decks
2%synergy
Farewell
9.2%inclusion24 decks260 decks
-4%synergy
Torment of Hailfire
6.9%inclusion18 decks260 decks
3%synergy
Beseech the Mirror
6.5%inclusion17 decks260 decks
3%synergy
Dread Return
6.2%inclusion16 decks260 decks
1%synergy
Buried Alive
6.2%inclusion16 decks260 decks
0%synergy
Exsanguinate
6.2%inclusion16 decks260 decks
-1%synergy
Wrath of God
5.8%inclusion15 decks260 decks
1%synergy
Vindicate
5.8%inclusion15 decks260 decks
0%synergy
Damnation
5.8%inclusion15 decks260 decks
-1%synergy
Feed the Swarm
5.8%inclusion15 decks260 decks
-11%synergy
Utility Artifacts
The Great Henge
50%inclusion5 decks10 decks
41%synergy
Blasting Station
47%inclusion122 decks260 decks
46%synergy
Lightning Greaves
45%inclusion117 decks260 decks
20%synergy
Swiftfoot Boots
24%inclusion63 decks260 decks
-3%synergy
Bolas's Citadel
13%inclusion33 decks260 decks
5%synergy
Oketra's Monument
10%inclusion26 decks260 decks
8%synergy
Spawning Pit
8.8%inclusion23 decks260 decks
8%synergy
Jet Medallion
8.5%inclusion22 decks260 decks
5%synergy
Archaeomancer's Map
6.5%inclusion17 decks260 decks
3%synergy
Mithril Coat
6.5%inclusion17 decks260 decks
2%synergy
Altar of the Brood
5.8%inclusion15 decks260 decks
5%synergy
Pearl Medallion
5.8%inclusion15 decks260 decks
3%synergy
Enchantments
Solemnity
59%inclusion154 decks260 decks
58%synergy
Bastion of Remembrance
55%inclusion144 decks260 decks
49%synergy
The Meathook Massacre
45%inclusion117 decks260 decks
40%synergy
Impact Tremors
40%inclusion4 decks10 decks
30%synergy
Grave Pact
39%inclusion101 decks260 decks
34%synergy
Black Market Connections
37%inclusion95 decks260 decks
25%synergy
Bitterblossom
34%inclusion88 decks260 decks
30%synergy
Thran Vigil
31%inclusion80 decks260 decks
30%synergy
Phyrexian Arena
29%inclusion75 decks260 decks
13%synergy
Land Tax
14%inclusion36 decks260 decks
7%synergy
Animate Dead
13%inclusion33 decks260 decks
4%synergy
Sothera, the Supervoid
12%inclusion31 decks260 decks
11%synergy
Dictate of Erebos
12%inclusion31 decks260 decks
9%synergy
Funeral Room // Awakening Hall
11%inclusion29 decks260 decks
9%synergy
Martyr's Cause
8.5%inclusion22 decks260 decks
8%synergy
Fanatical Devotion
6.9%inclusion18 decks260 decks
6%synergy
Trouble in Pairs
6.5%inclusion17 decks260 decks
2%synergy
Barrensteppe Siege
5.8%inclusion15 decks260 decks
4%synergy
Skrelv's Hive
5.4%inclusion14 decks260 decks
4%synergy
Planeswalkers
Liliana, Dreadhorde General
17%inclusion44 decks260 decks
13%synergy
Utility Lands
Mistrise Village
75%inclusion3 decks4 decks
67%synergy
Phyrexian Tower
65%inclusion169 decks260 decks
56%synergy
Urborg, Tomb of Yawgmoth
46%inclusion119 decks260 decks
37%synergy
Bojuka Bog
43%inclusion111 decks260 decks
13%synergy
High Market
30%inclusion79 decks260 decks
28%synergy
Reliquary Tower
30%inclusion77 decks260 decks
0%synergy
Takenuma, Abandoned Mire
28%inclusion74 decks260 decks
20%synergy
Cabal Coffers
23%inclusion60 decks260 decks
13%synergy
Eiganjo, Seat of the Empire
20%inclusion53 decks260 decks
13%synergy
Susur Secundi, Void Altar
19%inclusion50 decks260 decks
17%synergy
Vault of the Archangel
17%inclusion43 decks260 decks
4%synergy
Midgar, City of Mako
14%inclusion36 decks260 decks
10%synergy
Westvale Abbey
13%inclusion34 decks260 decks
11%synergy
Urza's Saga
12%inclusion31 decks260 decks
5%synergy
Nesting Grounds
12%inclusion30 decks260 decks
9%synergy
Command Beacon
10%inclusion25 decks260 decks
5%synergy
Spymaster's Vault
9.2%inclusion24 decks260 decks
6%synergy
Abandoned Air Temple
8.2%inclusion14 decks171 decks
3%synergy
Nykthos, Shrine to Nyx
7.3%inclusion19 decks260 decks
2%synergy
Mana Artifacts
Sol Ring
93%inclusion241 decks260 decks
9%synergy
Arcane Signet
89%inclusion231 decks260 decks
17%synergy
Talisman of Hierarchy
67%inclusion173 decks260 decks
40%synergy
Talisman of Conviction
50%inclusion5 decks10 decks
26%synergy
Talisman of Indulgence
50%inclusion5 decks10 decks
22%synergy
Orzhov Signet
48%inclusion126 decks260 decks
25%synergy
Fellwar Stone
29%inclusion75 decks260 decks
8%synergy
The Soul Stone
21%inclusion55 decks260 decks
17%synergy
Thought Vessel
15%inclusion40 decks260 decks
-2%synergy
Mind Stone
15%inclusion38 decks260 decks
0%synergy
Lotus Petal
12%inclusion32 decks260 decks
5%synergy
Chrome Mox
11%inclusion29 decks260 decks
5%synergy
Mana Vault
10%inclusion27 decks260 decks
4%synergy
Mox Diamond
7.3%inclusion19 decks260 decks
3%synergy
Mox Amber
5.4%inclusion14 decks260 decks
1%synergy
Lands
Zagoth Triome
100%inclusion3 decks3 decks
72%synergy
Spara's Headquarters
100%inclusion3 decks3 decks
72%synergy
Jetmir's Garden
100%inclusion3 decks3 decks
71%synergy
Breeding Pool
100%inclusion3 decks3 decks
58%synergy
Command Tower
90%inclusion233 decks260 decks
15%synergy
Godless Shrine
86%inclusion223 decks260 decks
45%synergy
Savai Triome
80%inclusion8 decks10 decks
55%synergy
Indatha Triome
80%inclusion8 decks10 decks
52%synergy
Temple Garden
80%inclusion8 decks10 decks
41%synergy
Overgrown Tomb
80%inclusion8 decks10 decks
40%synergy
Hallowed Fountain
75%inclusion3 decks4 decks
35%synergy
Watery Grave
75%inclusion3 decks4 decks
34%synergy
Isolated Chapel
72%inclusion187 decks260 decks
39%synergy
Vault of Champions
67%inclusion174 decks260 decks
43%synergy
Caves of Koilos
66%inclusion171 decks260 decks
36%synergy
Marsh Flats
61%inclusion158 decks260 decks
50%synergy
Sacred Foundry
60%inclusion6 decks10 decks
23%synergy
Blood Crypt
60%inclusion6 decks10 decks
23%synergy
Shattered Sanctum
58%inclusion151 decks260 decks
43%synergy
Fetid Heath
52%inclusion135 decks260 decks
39%synergy
Bleachbone Verge
52%inclusion134 decks260 decks
43%synergy
Tainted Field
45%inclusion116 decks260 decks
32%synergy
Shadowy Backstreet
41%inclusion106 decks260 decks
31%synergy
Sunbillow Verge
40%inclusion4 decks10 decks
32%synergy
Blazemire Verge
40%inclusion4 decks10 decks
29%synergy
Sulfurous Springs
40%inclusion4 decks10 decks
16%synergy
Sunpetal Grove
40%inclusion4 decks10 decks
12%synergy
Battlefield Forge
40%inclusion4 decks10 decks
11%synergy
Woodland Cemetery
40%inclusion4 decks10 decks
9%synergy
Brightclimb Pathway
40%inclusion103 decks260 decks
31%synergy
Underground Mortuary
30%inclusion3 decks10 decks
17%synergy
Savannah
30%inclusion3 decks10 decks
17%synergy
Deathcap Glade
30%inclusion3 decks10 decks
17%synergy
Bayou
30%inclusion3 decks10 decks
16%synergy
Bountiful Promenade
30%inclusion3 decks10 decks
8%synergy
Spectator Seating
30%inclusion3 decks10 decks
7%synergy
Undergrowth Stadium
30%inclusion3 decks10 decks
6%synergy
Luxury Suite
30%inclusion3 decks10 decks
6%synergy
Sandsteppe Citadel
30%inclusion3 decks10 decks
4%synergy
Exotic Orchard
29%inclusion76 decks260 decks
-7%synergy
Shineshadow Snarl
28%inclusion74 decks260 decks
16%synergy
Silent Clearing
27%inclusion71 decks260 decks
23%synergy
Scrubland
24%inclusion62 decks260 decks
10%synergy
Orzhov Basilica
23%inclusion60 decks260 decks
8%synergy
Concealed Courtyard
21%inclusion55 decks260 decks
15%synergy
Fabled Passage
21%inclusion54 decks260 decks
11%synergy
Temple of Silence
18%inclusion46 decks260 decks
0%synergy
Flooded Strand
17%inclusion43 decks260 decks
5%synergy
Prismatic Vista
16%inclusion41 decks260 decks
11%synergy
Polluted Delta
15%inclusion39 decks260 decks
3%synergy